How to effectively clean the memory on Xiaomi Redmi Note 5a

Xiaomi Redmi Note 5a, released a few years ago, is still a popular device due to its reliability and availability, but owners often face a lack of built-in storage. Modern applications and multimedia files take up more space, which leads to a slowdown of the MIUI operating system and the appearance of annoying overflow notifications. If your gadget has started to “slow down” or refuses to install updates, then it’s time to clean up the digital space.

In this article, we will take a look at all available methods of freeing up space, from simple built-in tools to radical measures such as resetting. You will learn where hidden files hide, how to safely remove system debris and whether to trust third-party applications for optimization. The right approach to file management will allow you to extend the life of your device and return it to its previous speed without having to buy a new phone.

Before you start deleting data, it's important to understand the structure of the storage, which is divided into system partitions, user data and application cache, and you can't touch the system partition because it can break your phone, but user files and cache are the things that you need to analyze and clean first.

Analysis of storage occupancy through settings

The first step is always to diagnose, and you don't blindly delete files at random, hoping for luck. MIUI It provides a convenient tool to visualize what exactly takes up precious gigabytes. → Memory to see detailed data distribution diagram.

Here you'll see a breakdown by category: apps, images, videos, audio, documents. Often, it turns out that the lion's share of space is occupied by messenger cache or long-forgotten TV shows. Storage analytics helps identify heavyweights, programs that you rarely use but consume resources.

Note the "Other" section, which often includes streaming cache, temporary update files, and remnants of deleted programs. If this partition is inflated to several gigabytes, you will need to clean up more deeply through a file manager or specialized utilities.

Use of the built-in "Security" application

Every Xiaomi smartphone has a Security system app preinstalled, which contains a powerful garbage cleaner tool. It's the safest and fastest way to remove temporary files, remnants of APK installation packages and advertising debris. Launch the app and click on the Cleanup button.

The system will scan and suggest that you delete files that do not affect the operation of the phone, but be careful: sometimes important logs or thumbnails will be included in the list of candidates for deletion, cleaning the cache through this tool will not delete your personal correspondence or saved passwords, but may log some applications.

After a standard check, click on the Deep Clean icon, where you’ll find large files, duplicate images, and unused apps. The take search feature is especially useful for Redmi Note 5a owners who often take screenshots or get the same pictures in different chat rooms.

⚠️ Note: When using Deep Clean, carefully look at file previews. The system algorithm may mistakenly mark important documents or work photos as unnecessary if they are in non-standard folders.

Working with messengers: Telegram, WhatsApp, Viber

The main memory eaters on modern smartphones are messengers. WhatsApp and Telegram by default store all received photos and videos in the memory of the device. Over time, folders with media files of these applications can grow to 5-10 GB or more, which is critical for models with a small amount of built-in storage.

In Telegram, the cleanup is most painless thanks to the cloud architecture. Go to Settings → Data and memory → Memory Use and click Clear Cache. You can set up autodelete the cache in, say, 3 days or a week, and this will make room instantly without removing your correspondence from the cloud.

WhatsApp is more complicated because the history is stored locally. Inside the app, go to Settings → Data and Storage → Storage Management. You can delete files larger than 5 MB or clear chats of specific contacts. Remember to also check the WhatsApp/Media/.Statuses folder through the file manager, where other people’s statuses often accumulate.

Cleaning the gallery and removing duplicates

Photos and videos are the second largest data type in the world. The Redmi Note 5a takes good pictures, but they can weigh a lot, and there are often a series of identical shots taken in serial mode, or screenshots that are no longer relevant.

Use the built-in Screenshots and Video album for quick sorting. Often users forget to delete short commercials or failed videos shot for a split second. Deleting even a dozen of these videos can free up hundreds of megabytes.

You can use third-party apps or the feature in the Security menu that I mentioned above to look for duplicates, and it's also worth checking the DCIM/.thumbnails folder. It's a hidden system folder that stores thumbnails for quick viewing of the gallery. It can weigh in gigabytes. Cleaning this folder is safe, the system will recreate it, but the gallery can temporarily upload photos slower.

Transfer data to a microSD memory card

Xiaomi Redmi Note 5a features a slot for memory cards format MicroSD, which is a salvation for owners of versions with 16 or 32 GB of internal memory. Transfer media to an external card is the best way to offload the system partition. However, not all applications allow you to transfer yourself completely.

To set the map as the primary storage for the photo, open the Camera app, click on three bars in the corner and select Settings. Find the "Save to" switch. SD-Now all the new images and videos will be written directly to the external media.

To transfer existing files, use a file manager. Select DCIM, Pictures, Download folders and move them to the map. When transferring large amounts of data, make sure that the battery is at least 50% charged to avoid data loss when suddenly turned off.

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Use Class 10 or UHS-I speed memory cards. Cheap and slow cards can cause lags when shooting high-resolution videos or loading photos from a gallery for a long time.

⚠️ Note: When formatting a memory card as "Internal Storage" (if available in your Android version), it is encrypted and will not be read on other devices.

Removal of unused applications and their residues

Many users install games or utilities "on a one-time" and forget about them. Such applications not only take up space, but can also work in the background, consuming RAM. Go through the list of installed programs in the Settings menu → Apps → All applications.

Size sorting will help identify leaders. Cache games or video editing apps are often hard to come by. When you delete these programs, the system suggests clearing the data. Be sure to agree to that, so you can delete your custom settings.

Remember the Xiaomi and Google system apps, which can't be removed in the normal way, but you can "disable" them, which will hide them from the menu and prevent the update, which will also save space. Be careful: disabling system components like MIUI Home or Google Play Services can disrupt the phone.

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Regularly auditing installed applications (once a month) keeps the system clean and prevents critical memory filling at the most inopportune time.

Radical measures: Resetting to factory settings

If none of the above methods gave the desired result and the memory fills up on its own (which may indicate a file system error or a virus), the last option remains - a complete reset. Factory Reset will return the phone to the state out of the box, deleting absolutely all user data.

Before this procedure, it is critical to back up, either use the Mi Cloud or Google Drive cloud, or transfer everything important to your computer, and after the reset, you can only recover the data from the created copy.

To perform the reset, go to Settings → Advanced Settings → Restore and Reset → Reset. The phone will reboot and start the cleanup process. It will take a few minutes. Once turned on, you will have a clean system free of years of accumulated digital debris.

⚠️ Warning: The reset process is irreversible.Make sure you remember the password from your Mi Account and Google account, otherwise the phone may be blocked by theft protection system after the reset (FRP).

Frequently Asked Questions (FAQ)